Dakota Ultrasonics DFX-8 plus MANUAL1 - Manual (Page 113)

DFX-8 Series Ultrasonic Flaw Detectors
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8) Press the OK key to set the gain step and return to the menu screen, or
ESC to cancel entering the gain step.
9) Finally, press the MEAS key to return to the measurement screen.
11.17 Detect Modes
The DFX-8 has three selectable modes of detection: Z-Cross, Flank, and Peak. The
following diagram illustrates the difference between the options:
Z-Cross Flank Peak
Refer to the diagrams above. The current polarity is positive, as shown by the
position of the gate above the baseline:
Z-Cross: The detection occurs as the first positive half cycle crosses the baseline
and goes negative.
Flank: The detection occurs as the first half cycle left edge rises and breaks the
threshold.
Peak: The detection occurs at the highest peak in the gate.
The procedure to select the DETECT MODE is outlined below:
For quick access and editing, refer to navigating the Hot Menus page 22.
Selecting the Detect